.main_lun {
    padding-top: 100px;
}

.banner {
    position: relative;
    width: 1300px;
    height: 300px;
    margin: auto;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.05);
    /* overflow: hidden; */
    z-index: 1;
}

.middle {
    position: relative;
    /* width: 10000px; */
    width: 1300px;
    height: 300px;
    padding: 14px 13px;
    margin: 0 auto;
    font-size: 14px;
    color: #fff;
    overflow: hidden;
}

.arr {
    transition: all 0.7s;
}

.mid-body {
    position: absolute;
    top: 13px;
}

.mid-body>div {
    transform: scale(0.9);
    /* transform-origin: right; */
    opacity: .16;
}

.arr {
    transition: opacity 0.3s ease;
}

.opacity-right {
    transform-origin: right;
}

.opacity-left {
    transform-origin: left;
}

.mid-body .checked {
    transform: scale(1);
    opacity: 1;
}

.banner .middle .mid-body .first {
    float: left;
    width: 750px;
    height: 272px;
    margin-right: 16px;
    background-image: url(https://s0.lgstatic.com/i/image/M00/8E/EC/CgqCHmAGQgiAfqskAAClyQVZEpw724.png);
    background-size: 750px 272px;
}

.banner .middle .mid-body .first .title {
    height: 37px;
    margin: 36px 0 8px 32px;
    line-height: 37px;
    font-size: 26px;
    font-weight: 700;
}

.banner .middle .mid-body .first .brief {
    color: hsla(0, 0%, 100%, .8);
    line-height: 25px;
    margin-left: 32px;
    font-size: 18px;
}

.banner .middle .mid-body .first .brightPoints {
    width: 463px;
    height: 110px;
    padding: 11px 0 0 17px;
    margin: 37px 0 0 20px;
    background: linear-gradient(270deg, hsla(0, 0%, 100%, 0), hsla(0, 0%, 100%, .09));
    box-shadow: 0 -0.08rem 0.16rem 0 rgba(0, 0, 0, .04);
    border-radius: 7px;
}

.banner .middle .mid-body .first .brightPoints div {
    float: left;
    width: 220px;
    height: 20px;
    line-height: 20px;
    margin-top: 16px;
}

.middle .mid-body .other {
    float: left;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 367px;
    height: 272px;
    margin-right: 16px;
}

.middle .mid-body .other>div {
    float: left;
    width: 367px;
    height: 126px;
    padding-top: 23px;
    margin-right: 16px;
    background-image: url(https://s0.lgstatic.com/i/image6/M00/77/41/CioPOWImxGeAU8miAANef1RsM-g458.png);
    background-size: 367px 126px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
}

.middle .mid-body .other>div .title {
    margin: 0 0 11px 21px;
    font-size: 18px;
    font-weight: 700;
    line-height: 25px;
}

.middle .mid-body .other>div .brief {
    color: hsla(0, 0%, 100%, .8);
    line-height: 20px;
    width: 194px;
    margin-left: 21px;
}

/* 给左右按钮设计样式，和定位 */
.banner .left {
    position: absolute;
    font-size: 24px;
    color: white;
    width: 32px;
    height: 72px;
    line-height: 72px;
    text-align: center;
    background-color: black;
    /* 添加半透明 */
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
    opacity: .3;
    top: 50%;
    left: 0;
    transform: translate(0, -50%);
    z-index: 1;
}

.banner .right {
    position: absolute;
    font-size: 24px;
    color: white;
    width: 32px;
    height: 72px;
    line-height: 72px;
    text-align: center;
    background-color: black;
    /* 添加半透明 */
    border-top-left-radius: 5px;
    border-bottom-left-radius: 5px;
    opacity: .3;
    top: 50%;
    right: 0;
    transform: translate(0, -50%);
    z-index: 1;
}

/* 给左右按钮添加鼠标移入样式 */
.left:hover {
    /* 把透明度挑高一点，让按钮看起来更亮一些 */
    opacity: .7;
}

.right:hover {
    opacity: .7;
}

.unchecked {
    transform: scale(0.9);
    opacity: .6;
}

.caro-cle-b {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 7px 10px;
    border-radius: 5px;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.2);
}

.caro-cle-b li {
    /* float: left; */
    width: 10px;
    height: 10px;
    background-color: #fff;
    margin: 0 10px;
    border-radius: 50%;
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.3);
    transition: all 0.7s;
}

.caro-cle-b .lunbo_current {
    transform: scaleX(3);
    border-radius: 23%;
    background-color: #5257bd;
}